Grouping of Images - Verbal and Reasoning

Directions to SolveIn each of the following questions, group the given figures into three classes using each figure only once.
Q1:

Group the given figures into three classes using each figure only once.

A 1,4,7 ; 3,6,9 ; 2,5,8

B 1,6,9 ; 2,4,7 ; 3,5,8

C 1,4,7 ; 2,6,9 ; 3,5,8

D 1,5,7 ; 2,6,9 ; 3,4,8

ANS:C - 1,4,7 ; 2,6,9 ; 3,5,8

Explanation: 3, 5, 8 have similar designs (four leaves placed close to a small circle and forming a symmetrical design at the centre of the figure). 2, 6, 9 have similar designs (three of the corners of the main figure are shaded black and there is a pattern formed around a '+' sign at the centre of the figure). 1, 4, 7 have similar designs (there are four small circles at(the corners of the main figure and there is a wheel shaped element at the centre of the figure).